diff options
Diffstat (limited to 'contrib/file/Magdir/compress')
| -rw-r--r-- | contrib/file/Magdir/compress | 50 |
1 files changed, 29 insertions, 21 deletions
diff --git a/contrib/file/Magdir/compress b/contrib/file/Magdir/compress index f4fe4a4..3da7f5f 100644 --- a/contrib/file/Magdir/compress +++ b/contrib/file/Magdir/compress @@ -14,28 +14,32 @@ >2 byte&0x1f x %d bits # gzip (GNU zip, not to be confused with Info-ZIP or PKWARE zip archiver) +# Edited by Chris Chittleborough <cchittleborough@yahoo.com.au>, March 2002 +# * Original filename is only at offset 10 if "extra field" absent +# * Produce shorter output - notably, only report compression methods +# other than 8 ("deflate", the only method defined in RFC 1952). 0 string \037\213 gzip compressed data ->2 byte <8 \b, reserved method, ->2 byte 8 \b, deflated, ->3 byte &0x01 ASCII, ->3 byte &0x02 continuation, ->3 byte &0x04 extra field, ->3 byte &0x08 original filename, ->>10 string x `%s', ->3 byte &0x10 comment, ->3 byte &0x20 encrypted, ->4 ledate x last modified: %s, ->8 byte 2 max compression, ->8 byte 4 max speed, ->9 byte =0x00 os: MS-DOS ->9 byte =0x01 os: Amiga ->9 byte =0x02 os: VMS ->9 byte =0x03 os: Unix ->9 byte =0x05 os: Atari ->9 byte =0x06 os: OS/2 ->9 byte =0x07 os: MacOS ->9 byte =0x0A os: Tops/20 ->9 byte =0x0B os: Win/32 +>2 byte <8 \b, reserved method +>2 byte >8 \b, unknown method +>3 byte &0x01 \b, ASCII +>3 byte &0x02 \b, continuation +>3 byte &0x04 \b, extra field +>3 byte&0xC =0x08 +>>10 string x \b, was "%s" +>9 byte =0x00 \b, from MS-DOS +>9 byte =0x01 \b, from Amiga +>9 byte =0x02 \b, from VMS +>9 byte =0x03 \b, from Unix +>9 byte =0x05 \b, from Atari +>9 byte =0x06 \b, from OS/2 +>9 byte =0x07 \b, from MacOS +>9 byte =0x0A \b, from Tops/20 +>9 byte =0x0B \b, from Win/32 +>3 byte &0x10 \b, comment +>3 byte &0x20 \b, encrypted +### >4 ledate x last modified: %s, +>8 byte 2 \b, max compression +>8 byte 4 \b, max speed # packed data, Huffman (minimum redundancy) codes on a byte-by-byte basis 0 string \037\036 packed data @@ -144,3 +148,7 @@ >>17 byte =0x0A os: Tops/20 >>17 byte =0x0B os: WinNT >>17 byte =0x0E os: Win32 + +# 4.3BSD-Quasijarus Strong Compression +# http://minnie.tuhs.org/Quasijarus/compress.html +0 string \037\241 Quasijarus strong compressed data |
